assume cs:code
code segment
start:
	mov ax,0b800h
	mov es,ax
	mov di,160*12

	mov bx,offset s - offset se
	mov cx,80
s:
	mov byte ptr es:[di],'!'
	add di,2
	int 7ch
se:
	nop
	
	mov ax,4c00h
	int 21h
code ends
end start
